SLAYD, once repaired your crafts will be safe and sea worthy. I do not want to discuss costs, I'll get my guys to collect the skis and you could even drive through to the factory and we can discuss the repairs/costs. I would however be more comfortable quoting once I've seen the skis... As for time, a couple of days at most...
ALUTEX is a form of fibreglass with strands of aluminium woven into the fabric - It's slightly stronger than standard fibreglass but has the added benefit of being lighter. When it's comes to carbon fibre and kevlar, ALUTEX is your middle range alternative without the costs. My MAKO was already built from this, I did not want to change the pattern or the look, definitely one of the strangest materials I've used.